Apple's Wordwide Developer Conference kicked off yesterday with a keynote highlighting changes to the company's upcoming software platforms. For developers, the week-long conference is a look at the technologies they'll be able to use as they build or update their apps. For the rest of us, it's a fun look at the features you'll be able to use on your iPhone, iPad, Mac, and Watch starting this fall.I also wrote about one feature that I think will make a very big impact for businesses and consumers in my Inc.com column this morning--Apple's new Apple Pay Later.